About This Chapter
How It Works:
- Identify the lessons in Glencoe Physical Science's Energy chapter with which you need help.
- Find the corresponding video lessons within this companion course chapter.
- Watch fun videos that cover the energy topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- The importance of energy in nature
- The different types of energy
- How to calculate gravitational potential energy
- Examples of mechanical energy
- Examples of conservative and non-conservative forces
- The conservation of mechanical energy
- The relationship between mass and energy
- Ways the body uses energy
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1. What is Energy? - Definition and Significance in Nature
This lesson describes the nature of energy and how it is transferred from one source into another. Additionally, it will describe the significance of energy in natural systems.
2. Kinetic Energy to Potential Energy: Relationship in Different Energy Types
This video defines and describes kinetic and potential energy. You'll learn how different types of energy can be classified as potential and kinetic. You'll also find out how kinetic and potential energy are transformed.
3. What is Mechanical Energy? - Definition & Examples
In physics, energy is how work gets done. This video describes one important type of energy, mechanical energy, and provides examples of both kinetic and potential mechanical energy.
4. Conservative Forces: Examples & Effects
Learn how to tell if a force is conservative and what exactly is being conserved. Then look at a couple of specific examples of forces to see how they are conservative.
5. Nonconservative Forces: Examples & Effects
Find out what exactly it is that makes a force nonconservative. Then look at some of the most common types of nonconservative forces and how they affect the world around us.
6. Conservation of Mechanical Energy
Energy comes in many forms and for any system can never be created or destroyed. This holds true for mechanical energy, which also obeys this law of conservation of energy. In this video lesson, you'll explore how mechanical energy is converted or transferred between forms and objects.
7. Mass and Energy: Description and Interchangeable Relationship
Einstein used E = mc^2 to prove that mass and energy are relative to each other. This lesson describes how energy can be converted into mass and mass into energy. Experimental results from particle accelerators are used to demonstrate the relative nature of mass and energy.
8. Energy Balance: How the Body Uses Energy
Energy balance is the relationship between the energy you take in and the energy you use. Learn how you take in energy from the foods you eat and how your body uses that energy for your basal metabolism, physical activity and food digestion.
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Other chapters within the Glencoe Physical Science: Online Textbook Help course
- Glencoe Physical Science Chapter 1: The Nature of Science
- Glencoe Physical Science Chapter 2: Motion
- Glencoe Physical Science Chapter 3: Forces
- Glencoe Physical Science Chapter 5: Work and Machines
- Glencoe Physical Science Chapter 6: Thermal Energy
- Glencoe Physical Science Chapter 7: Electricity
- Glencoe Physical Science Chapter 8: Magnetism and Its Uses
- Glencoe Physical Science Chapter 9: Energy Sources
- Glencoe Physical Science Chapter 10: Waves
- Glencoe Physical Science Chapter 11: Sound
- Glencoe Physical Science Chapter 12: Electromagnetic Waves
- Glencoe Physical Science Chapter 13: Light
- Glencoe Physical Science Chapter 14: Mirrors and Lenses
- Glencoe Physical Science Chapter 15: Classification of Matter
- Glencoe Physical Science Chapter 16: Solids, Liquids, and Gases
- Glencoe Physical Science Chapter 17: Properties of Atoms and the Periodic Table
- Glencoe Physical Science Chapter 18: Radioactivity and Nuclear Reactions
- Glencoe Physical Science Chapter 19: Elements and Their Properties
- Glencoe Physical Science Chapter 20: Chemical Bonds
- Glencoe Physical Science Chapter 21: Chemical Reactions
- Glencoe Physical Science Chapter 22: Solutions
- Glencoe Physical Science Chapter 23: Acids, Bases, and Salts
- Glencoe Physical Science Chapter 24: Organic Compounds